Vapor-lamp.



H. G. WRIGHT.

VAPOR LAMP.

APPLICATION FILED MAR. 25, 1909.

Patented June 7, 1910.A

WITNESSES:

HENRY C. WRIGHT, 0F BRISTOL, CONNECTICUT, ASSIGNOR T0 THE BRISTOL BRASS COMPANY, OF BRISTOL, CONNECTICUT, A CORPORATION OF CONNECTICUT.

VAPOR-LAMP.

Specification of Letters Patent.

Patented June 7, 1910.

Application led March 25, 1909. Serial No. 485,583.

To all whom 'it may concern:

Be it known that I, HENRY G. WRIGHT, a citizen of the United States, and resident of Bristol, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Vapor-Lamps, of which the following is a full, clear, and eXact specification.

This invention relates to vapor lamps, and more especially to that class thereof in which alcohol constitutes the fuel, this alcohol being first vaporized by the application of heat which is generated by the flame of the gas just generated in an automatic manner, and it has for its object an improved construction of the burner portion of the lamp, and also the provision of a shutter for regulating the fiame, in such a manner as to gradually reduce the volume thereof, this mechanism acting in the capacity of a valve rather than a shutter inasmuch as the valve comes into direct coperaton with a gas receiver from which the flow of gas emanates.

The invention has been clearly illustrated in the accompanying drawings, in which similar characters denote similar parts, and in which- Figure 1 is a sectional plan of a lamp embodying my invention, substantially on line indicated by 1 in Fig. 2. Fig. 2 is a central vertical section thereof on line 2, 2 of Fig. 1. F ig. 3 is a side view partially broken away of the valve tube employed in my improved lamp and constituting one feature of the invention, and Fig. 4: is a side view of the wick tube of the device.

Briefly stated, my improved vapor lamp comprises a font near the center of which the wick tube is supported, this tube being surrounded at its upper end with the jet ring in such a manner as to form a gas receiving chamber, and also what may be termed a valve which in the present instance is made in tubular cylindrical form interposed between the wick tube and the jet ring so as to gradually shut 0E and control the flow of gas from the generating chamber, or the gas receiver through the apertures in the j et ring.

Referring to the drawings 10 denotes the font having a cover l1 which is provided with a central boss 12 on which the burner portion of the device is supported.

The bottom plate 10 has a depression 13 which in its bottom carries a stud 14; in screw threaded engagement with the lower end of the wick tube 15 which may thus be readily placed in position or removed therefrom, as desired. The wick tube 15 is provided with a series of apertures 16 through which alcohol is admitted into the interior thereof from the font 10, and an imperforate or dead space 15 is provided on the eXtreme bottom of the tube for purposes to be hereinafter described.

Closely surrounding the wick tube 15 in which the wick 17 is disposed for the purpose of carrying the alcohol into the uppermost portion thereof, is a shutter 18 having a series of elongated openings 19 which register with the aperture 16 of the wick tube, when the valve tube is in its lowermost or wide open position so that the alcohol can thus freely enter into the wick tube. The valve 18 is vertically movable on the wick tube l5 and has a slot 20, one edge of which is formed into a rack 21 to be engaged by a pinion 22, the operating shaft 23 of which carries a linger piece 24E, the rotation of which will result in raising and lowering the valve tube 18, as will be readily understood. It will therefore be seen that when the valve tube 18 is raised from the position shown in Fig. 2, the dead space 18 disposed below the openings 19 of the valve tube, will gradually shut off the apertures 16 of the wick tube, commencing with the lowermost thereof, and until all of said openings have been closed and consequently further admission of alcohol into Jthe interior of the wick tube is prevented. v

Referring now to the upper end, or burner portion of the device, and referring to Fig. 2, it will be seen that the central boss carries a jet ring 25 closely fitting the outside of the valve tube 18 and having at a point intermediate its ends an enlarged portion 26 to form an annular chamber 27 which is normally in communication with an annular gas receiving chamber or space 28 inclosed at the top by a cap 29 and of a width substantially equal to the thickness of the valve tube 18.

The generation of gas in the receivingY chamber 28 takes place primarily, or in other words, when the lamp is first started, as folmay be projected thereinto by a pump mechanism comprising a cylinder having side openings 31 and containing a piston 32 from which a tubular piston rod 33 eXtends upward and passes through a bearing 34 which is in screw threaded engagement with a nut 35 secured to the cover 11, and whichvmay be unscrewed so as to leave an opening at fore beV thrown'into said trough by the downward movement ofthe piston and its tube. A button 37 is provided at the top of the tube for its manipulation and, as previously stated-said tube and piston may be rotated to bring the button .intro position shown by ring tube 1,5 constitutes a receiving chamber Y Particularattention isalso invited at this time to the `fact thatcontrary to thegeneral Constructionofvapor lampsin 60111111011, use.:

dotted lines j to remove the button 37 and outlet'36 from its position above the trough sothat thealcohol in the trough may be. Vignited withoutinjuring said button or the tube. ,Y A

When the alcohol. inV the trough 25 is ignited, it will naturally heat the lower portion of the jet ,ring VV25, and the heat thus generated will'be transmitted through the valve tube 18, to the wick tube 15, and in order to prevent the heat of both of these tubes from traveling downwardand into the font, means are provided whereby the full continuation of the tubes longitudinally into the font will be interrupted.V For this reason the wick' tube 15 is cut as indicated at a (see Fig. 1) so as to leave only very small connecting walls a which unite the upper and lower sections of the tube 15, it being evident that,y in this manner the lower portion of the tube 15 will be preserved comparatively cool Vcompared with the upper,V

portion'thereof. In a like manner the valve tube 1^8Yis cut at b to leave comparatively small Aconnecting portions Z2"v so that in this manner the heat will b e prevented from traveling from the upper portion of the tube 18 --into the lower portion thereof.

As above stated, the upper part of the jet for the gas which is generated bythe application otheat inthe upper end of the wick tube 15, and one of the essential features of my present invention consists in 1 the improved'construction of the ,shutter or valvel tube18 vvhereby'theV flow of gas from said generating chamber to the jet openings may be vkregulatedfas desired and so as to increase Ql'adcreasethe flame somewhat after'themanner of an ordinaryjgas stove'or burner.

supply and the jet openings so that the 'amount of gas admitted to said openings can be regulated. f In order to produce this result I preferably provide at the upper end of the valve tube 18 a series of recesses which rare gradually increasing in depth as they approach the upper end of the tube. This construction is particularly illustrated in Fig. 3 in which said recesses are denoted by the numeral 10 -and have their greatest ldepth at the end of the tube while they gradually grow shallower until the bottoms of the recesses join the outer periphery of the valve tube, these recesses being coperative for permitting the entrance of gas therethrough, with the edge 41 of the jet ring chamber 26 so thatin the device shown in thedrawings a vertical Lmovement of they valve tube v18 for anamount equal to that indicated by 'g in Fig. .3 will result'in reducingfthe flow of gas through said recessV from a free and fullamount to its entire shut off. Y

It will, of course, be understood that when the. parts are inthe position shown in Fig. 2 and the gas passing through the apertures or jet openings 42 is ignited, thenY the jet parts without'depa'rting from the spiritof Y ktion of said wick tube to leave an annular space for the accumulation of gas, of a tube Y i interposed between saidwick tube and said" jet ring for controlling the admissionof' gas Y from said space tolsaid jet-openings.

2. The combinationwith a` font,`a wick tube carried thereby, andV a. etA ring. having jet-'openings and surrounding the upper porhaving at its" topa recess gradually increasing in depthl toward the end'of said 'tube for vcontrolling the admission. ofgas `from said space `to saidv jet-openings.

The combination with-fa font, wick" vtion of saidwick tubey to leave an annular Vspace for theaccumulationof gas, cfa tube tube carried thereby, and, aj et ring having vthegvalvewtubeis1disposed between the gas tion of, saidwick 4tube, tofleave kan annular space for the accumulation of gas, of a tube interposed between said wick tube and said jet ring for controlling the admission of gas from said space to said jet-openings, and means for actuating said tube.

4. The combination with a font, a wick tube carried thereby and having an aperture to permit the passage of fuel from the font into said wick tube, and a jet ring having jet-openings and surrounding the upper portion of said wick tube to leave a space for the accumulation of gas, of a valve tube con operative with said wick tube and the jet ring and for controlling the admission of gas from said space to said et-openings and also for opening and closing said aperture.

5. The combination with a font, a wick tube carried thereby and having an aperture disposed intermediate its ends to permit the passage of fuel from the font into the interior of the wick tube, and a jet ring having jet-openings and surrounding the upper portion of said wick tube to leave a space for the accumulation of gas, of a valve tube surrounding said wick tube and having near its end a slot for uncovering said aperture, and means for moving said valve tube for shutting olf the supply of gas to said jet-openings and simultaneously closing the aperture in the wick tube.

6. The combination with a font, a wick tube carried thereby and having a series of superposed apertures to permit the passage of fuel from the font into said wick tube,

and also having a dead space below said apertures, and a jet ring having jet-openings and surrounding the upper portion of said wick tube to leave a space for the accumulation of gas, of a valve tube interposed between and contacting with said jet ring and the wick tube and having near its bottom a slot uncovering the apertures in the wick tube, and means for moving said valve tube relatively to the wick tube and the et ring for gradually closing the apertures in the wick tube and simultaneously gradually shutting off the supply of gas to said jetopenings.

7. The combination with a font, a wick tube carried thereby, and comprising a fuel receiving portion and a gas generating portion, means for reducing the transmission of heat from the gas generating portion to the fuel receiving portion, and a jetring surrounding the upper portion of said wick tube to leave a space for the accumulation of gas, of a valve tube interposed between the wick tube and the jet ring and closely contacting with said tube and said jet ring to transmit heat from the jet ring to the upper portion of said wick tube, and means for reducing the transmission of heat from the upper portion of said valve tube to the lower portion thereof.

HENRY C. WRIGHT.

Vitnesses:

CHAS. F ScHMnLz,

M. E. ONEILL. 

